Sash-tightening device.



Patented Apr. 15, I902.

0. B. FOOTE, JR. SASH TIGHTENING DEVICE.

(Application filed Oct. 12, 1901.)

(No Model.

&

Witnesses CHARLES E. FOOTE, JR., OF CINCINNATI, OI-IIO.

SASH-TIGHTENING DEVICE.

SPECIFICATION forming part of Letters Patent No. 697,939, dated April 15, 1902.

Application-filed October 12, 1901. Serial No. 78,423- (No model.)

To aZZ whom, t'fimay concern:

Be it known that 1, CHARLES B. FooTE, Jr. a citizen of the United States, and a resident of the city of Cincinnati, in the county of Hamilton and State of Ohio, have invented a certain new and useful Sash-Tightening Device; and I do declare the following to be a clear, full, and exact description thereof, attention being called to the accompanying drawings, with the reference letters and unmerals marked thereon, which form also a part of this specification.

The subject of this invention is a sashtightening device to be used for the purpose of holding a sash closely to the ways within which it moves, so as to close up tightly any spaces which might admit draft, cold air,

dust, 850., thus serving in place of weatherstripping. At the same time while thus tightly held by this device the window is also prevented from rattling.

The leading feature of my invention is therefore a construction whereby the device is enabled to carry out these functions, an additional feature beingaconstruetion where by the device serves also 'as a lock to positively hold the sash in its closed position.

In the following specification and particularly pointed out in the claims following is found a full'description of the invention, togetherwith its operation, parts, and construction, which latter is also illustrated in the accompanying drawings, in which- Figures 1, 2, and 3 show in vertical crossseotion the lower part of a window, lower sash, and part of an upper one with my device in position. In Fig. l the lower sash is raised. In Fig. 2 it is approaching its closing position with the complementary parts of my device about engaging each other, in the upper sash they being engaged, and in Fig. 3 such engagement is completed. This latter figure also shows the lower sash, which does not fit tightly in its ways, as snugly held now against the parting-strip, closing up the space between the two, and by taking up all such space and play excludes cold air, draft, dust, 850., the same as would be done by weatherstripping. Fig. at shows the parts of the window as they appear in Fig. 1 and when said figure is Viewed from the right, it being, in fact, an inside View of the window. Fig. 5

is an enlarged edge view of one of the complementary parts of the device, and Fig. 6 shows in a side view the device constructed in a manner permitting it also to be positively locked when parts are in a position as shown in Figs. 2 and 3that is, when the sash is closed. Fig. '7, in a view similar to Fig. 6, shows a modification of my device.

In the drawings, 9 indicates the lower sash, guided between strips 10 and 1], the latter separating it also from the upper sash 12, being therefore usually called parting-strip. The upper sash is guided between this parting-strip and another guide-strip 13. Of the complementary parts one is attached to one of the upright parts or stiles 14 of a sashframe, the other to the adjacent guide-strip. The parts of the device may be readily arranged to be interchangeable in position for attachment; but the arrangement shown is considered preferable, and in which catch 15 of the device is attached to the sash-frame, while the other part, being substantially a pivotally-supported pawl 16, is attached in a stationary position. Catch 15 has two teeth at and b of different projection, the first being of such extent that pawl 16 reaches into its path, so as to encounter the same when the sash approaches its closing position, as shown in Fig. 2 for thelower sash. The result of this contact is that said pawl is caused to swing toward the sash-frame in a direction at right angles to it, thereby pushing this latter against the opposite guide-strip 11 and tightly holding it'thereagainst, as shown in Fig. 2 for the upper sash and in-Fig. 3 for the lower one. position it closes up thespace between the two, which space in Figs. 1 and 2 is shown open. In this former-that is, closed-position draft, ingress of dust and cold air are effectually prevented, as is also the rattling of the window.

Pawl 16 is carried on a pivot 17 and mounted within an inclosing housing or shell 18, open toward the sash and provided with lugs 19 for its attachment. It is further of such length as to accomplish its objectto wit, pushing the sash tightly against the opposite guidestrip. In its action toward this latter it is adjustable, however, as to its position, since the play or space to be taken up is not exactly (See also Fig. 6.) In this alike in all cases. For such purpose pawl 16 is not fixedly held to its position by pivot 1'7, but is capable of a limited sliding adjustment thereon, which is accomplished by providing a slot 21 for the reception of pivot 17 in place of a tight-fitting opening. permits the pawl to yield in case there should be none or very'little play to be taken up; but in all cases, and especially of increased play, it is held in active contact with the sash by a spring 22 behind it and pushing it outwardly by acting with its free end against the inner end of the pawl. This end maybe grooved, as shown at 23, to prevent the end of the spring from slipping ofi. The other end of this spring is fixedly-attached within the inside of the housing. In raising or opening the sash the tooth Z), which by reason of less projection did not come in contact with pawl 16 during the downward or closingmovement of the sash, will now come in contact with the same, since the pawl now projecting farther out, caused so by its previous engagement with tooth a, reaches into the path of this tooth Z). This contact restores pawl 16 again to its normal position, as shown in Figs. 1 and 7, read-y for the next engagement with tooth a, and keeping it also, aided by spring 22', out of all contact with any other parts during any movements or intermediate adjustments of the sash. This is quite an advantage, since it obviates the wear and tear caused by the pressure and friction of such' devices when they are at all times in active position and in contact with the sash, interfering also with the free movement of the same by reason of such contact. In this case there is no interference with the free and easy movement of the sash in any direction, since the engagement commences only at the extreme end of'its movement and when almost closed, as 'maybest be understood from Figs. 2 and 3. v

Any number of these devices may be used on a sash; but there should be one at least on each side of a sash, midway its height or near one end, which number may be increased according to theheight of the sash. For the upper sash they would of course be reversed. The sash may be held with limited security in its closed position by locking pawl 16 in its engaging position. For such purpose I provide a sliding latch 24, (see Fig. 6,) supported onthe rear side of the housing and adapted to be moved into the space between this latter and the end of the pawl, preventing the same from being pushed inwardly by tooth b,

This slot shape of a pin, which by reaching into or across the open space of housing 18 prevents the inner end of said pawl from going beyond its proper limit. The end of this latter may for such purpose have a heel 27. g

In the modification shown in Fig. 7 slot 21 is omitted and pawl 16 is entirely supported by spring 22 by being secured thereto by means of its pivot 17.

Having described my invention, I claim as new- 1. In a sash-tightening device, the combination of two complementary parts of which one is to be secured to the sash so as to move therewith, and the other in a stationary position adjacent thereto, one of the parts being a pivotally-supported pawl having also a bodily movement toward or from the other part and in a direction at right angles to the. plane of the sash and the guide-strips thereof and the other part having two projections, of which one, when coming in contact with the pawl, causes the same to tilt, while the other returns it again to its normal position, and a spring to yieldingly impel the movement of the pawl toward the other part.

2. In a sash-tightening device, the combination of two complementary parts, of which one is a pawl having a slot, a pin received by this latter and on whichthe pawl is supported to have a tilting motion, a housing within which this supporting-pin is secured, a spring also in the housing in contact with the inner end of the pawl and with a normal tendency to push the same outwardly on the pin occupying its slot toward the other part which latter has two projections of unequal extent and whereby when the two parts pass each other, the longer projection is capable of tilting the pawl to bring it in contact with the other part, while the shorter projection, when passing in reverse direction, returns it again into its former position, in which it remains leaving the sash free to move in either direction without coming in contact with the stationary part.

3. In a sash-tightening device, the combination of two complementary parts, one being a pivotally-supported pawl having also a bodily movement to or from the other part, which latter has two projections of unequal extent adapted to engage the pawl to tilt it either toward and in contact with such other part or away therefrom, a spring to hold such pawl in the former contacting position and means to positively lock it in such position. In testimony whereof I hereunto set my signature in the presence of two witnesses.

CHARLES B. FOOTE, JR.

Witnesses:

O. SPENGEL, ARTHUR KLINE. 

